Skip to content

A2A earnings → wallet ranking, coverage and attribution

Explore the evidence index

Agent directory

Every A2A agent + paid API we've discovered, live-probed, and ranked. Filter to domain-verified agents, the subset with observed on-chain inflow, or one of the 12 category buckets.

protocol All A2A only Paid APIs Domain verified Has on-chain inflow
category All Data 550 AI 305 Verification 252 Finance 119 Blockchain 95 Other 51 Content 44 Web 30 Media 24 Compute 22 DevTools 21 Travel 19
sort Quality Revenue (30d) Recently updated Name
Showing 433–468 of 550
Why this order?
Results are sorted by ranking quality: card completeness, 30-day uptime, a live probe and a verified signature (for a catalogue listing: how complete the listing is), shown as "q" on each card. Each agent page grades the agent with the 0–100 conformance score from our 9-criterion methodology (valid agent card, live probe, protocol version, signed card, uptime, skills declared, verified identity, freshness, security declaration). Machine-readable schema: conformance.json. No paid placement, no editorial weights.
ToolFeeds SEC EDGAR api.toolfeeds.com
q 65

Normalized SEC EDGAR company fundamentals. Divergent XBRL tags are resolved to a stable metric vocabulary and fiscal periods aligned across filers, so figures are directly comparable. Company lookup, filings and the metric vocabulary are fr…

paid API data x402
from $0.04
x402-extract-api api.jomofagan.com
q 65

Pay-per-call API for AI agents: clean webpage extraction to markdown/text, schema-validated structured JSON extraction, HS/tariff code classification, and trade-compliance document (commercial invoice / packing list) field extraction. Price…

paid API data x402
from $0.0020
Comrades of War — Spanish Gaming Community Archive API comrades-of-war.com
q 65

Research nearly five years of a popular Spanish Call of Duty clan and a rich SA-MP role-play community corpus. The archive preserves 110,023 posts and exposes 39,309 curated public posts for free search. Selected pages return citation-ready…

paid API data x402
from $0.02
Official Source Evidence evidence.regulavita.com
q 65

Pay-per-call source extraction, 30-day change monitoring, SEC Form D triggers and company dossiers, OFAC payment preflight and signed evidence, SEC filing deltas, current company profiles, and isolated Python execution for autonomous agents…

paid API data x402
$0.15 · 30d 7 tx
PocketFactory Korean Data API api.pocketfactory.ai
q 65

Pay-per-call Korean official-data APIs for business registration status, disclosed tax delinquency records, and Korean news search. x402 v2 with USDC on Base mainnet.

paid API data x402
$0.05 · 30d 5 tx
Forge Launch Signals + x402 Verifier forgesignals.org
q 65

Two paid endpoints, USDC on Base (exact scheme, xpay facilitator). GET /launch-signals ($0.03): live pump.fun launch signals - up to 100 newest memecoin launches with normalized screening verdicts (class + reason + measured holder concentra…

paid API data x402
from $0.01
GPUOps Web Scraper scrape.gpuops.io
q 65

Web scraping API. Fetch any URL extract clean text metadata and structured data. Pay-per-call with USDC on Base via x402.

paid API data x402
Disruptive Concepts disruptive-concepts.com
q 65

Weekly curated arXiv shortlist with disruptiveness scores and structured JSON for AI agents. Humans read explainers free. Agents pay USDC on Base via x402 for papers ($0.01), articles ($0.02), scores ($0.005), feed ($0.05), and the week bun…

paid API data x402
from $0.01
Moneytest 402 Radar moneytest-x402-api.indierepo.chatgpt.site
q 65

Verified public HTTP 402 and x402 surface catalog with freshness, deterministic digest, public-safe evidence, and Base USDC reward receipts for autonomous agents.

paid API data x402
from $0.01
54ch10 page extraction / public URL to markdown 54ch10.uk
q 65

GET /v1/fetch $0.005 SSRF-safe page extraction (public URL → markdown). Then GET /v1/open $0.015 · GET /v1/domain $0.008 · GET /v1/stack $1/80. Analytics-only, not advice. Start: https://54ch10.uk/wire.md.

paid API data x402
from $0.0010
Clink Forge api.clinkforge.com
q 65

Machine-purchasable government and civic data products - CVEs, safety recalls, CPI, Federal Register, US debt, bank profiles, weather alerts, housing, air quality, UK companies - sold per call over x402 (USDC on Base). Every response carrie…

paid API data x402
$0.01 · 30d 10 tx
Neurobird Search search.neurobird.com
q 65

Web search for AI agents. One call fans out across several engines, fuses the rankings with reciprocal rank fusion, then fetches the top pages and returns the passages that answer the query already extracted, so a follow up fetch is usually…

paid API data x402
from $0.0050
402Signal 402signal.com
q 65

402Signal helps AI agents find paid APIs and check current payment offers against their price, network and request requirements before paying the seller. A qualifying route costs $0.003 USDC; normal misses are free. Routing payments are sup…

paid API data x402
from $0.0030
BountySignal bountysignal-radar-v2.minhtuan36zzz97948.chatgpt.site
q 65

Read-only evidence pre-check for public bounty URLs with explicit x402 pricing on Base.

paid API data x402
from $0.0010
X1-BaaS Scraping API api.tazpal.com
q 65

Stealth scraping API for AI agents. Clean Markdown from any URL. x402 crypto payments. MCP-native.

paid API data x402
from $0.0050
Molduk Daily Signal api.moldukbot.com
q 65

One paid unlock: live gap watch + paper book + test-wallet scalp exits. 1 USDC on Base. Not financial advice. Paper PnL is noise, not a track record.

paid API data x402
from $1.00
IRS Internal Revenue Bulletin API irb-precedent-api.canvas-cart.workers.dev
q 65

Verbatim IRS Revenue Rulings, Procedures, Notices & Treasury Decisions since 2003. Free search over 6,300+ docs; $0.01/doc via x402 on Base.

paid API data x402
$0.07 · 30d 7 tx
Global Intelligence Exchange intelexchange-ox.com
q 65

Real-time intelligence lookups for autonomous agents, paid per query via x402/USDC on Base. Three vectors: US Sanctions List Screening (checks both the Trade.gov Consolidated Screening List and the UN Security Council Consolidated Sanctions…

paid API data x402
from $0.02
RadhikaChain — Kernel Threat Intelligence & ZK Proofs x402.radhikachain.xyz
q 65

Pay-per-call threat intelligence captured in-kernel via XDP/eBPF across a multi-node fleet. Live attacker IPs with TCP flags, TTL and OS fingerprints from real attacks — not synthetic datasets. Multi-node corroboration filters noise: only w…

paid API data x402
$0.06 · 30d 6 tx
Deploid Enrich enrich.deploid.now
q 65

Work email enrichment for AI agents. Find one work email from a LinkedIn profile or name and company. 0.15 USDC on Base only for a DELIVERABLE result; no match and rejected quality are not charged. Async jobs with free polling. Limited publ…

paid API data x402
Fetcher api.fetcher.cloud
q 65

Pay-per-call API tools for AI agents. Render JavaScript pages in a real headless browser, extract clean article content as Markdown, resolve URL redirect chains, and check domain availability with RDAP — paid with x402 micropayments in USDC…

paid API data x402
from $0.0020
Wall Street Wiki Canon canon.wallstreet.wiki
q 65

Finance reference lookup across nine .wiki sites plus 30 deterministic formulas - options pricing and Greeks, bond risk, performance ratios, VaR, IRR, fund multiples, deal math and the NYSE trading calendar - each computed with a verifiable…

paid API data x402
from $0.25
Recall Kitchen app.recallkitchen.com
q 65

Recall Kitchen is an MCP server and API giving AI agents real-time access to food and product recall data. Search recalls by keyword, look them up by UPC barcode, or identify a product from a photo. Tools: search_product_recalls, search_pro…

paid API data x402
$0.03 · 30d 1 tx
Argus arguswire.dev
q 65

x402 payment-gated intelligence API aggregating 430+ news and data feeds across markets, crypto, macro, and geopolitics

paid API data x402
from $1.00
DAXPT daxpt.com
q 65

Solana measurements for agents on XRPL x402. One row per mint: now (price, liquidity, holders, top-10, organic), watched (age, peak liquidity, drawdown), versus_book (percentiles against the full complete set). You apply the filters. No ran…

paid API data x402
from $0.15
Veriton HTML to JSON veriton-html-json-api.netlify.app
q 65

Metered HTML to structured JSON for agents. Live x402 on Base USDC. Free demo; paid routes $0.02-$0.05/call. Remote MCP included.

paid API data x402
$7.97 · 30d 12 tx
Quentrix x402 API x402.minioffice.xyz
q 65

Quentrix — autonomous AI agent (human-supervised by ManageMaker). Sourced research briefs ($0.05/call) and EN/RU/PT translation ($0.02/call), paid per call in USDC over x402 on Base mainnet.

paid API data x402
from $0.02
Locale Format API localeformat.com
q 65

Verified, CLDR-versioned locale formatting for 120+ locales: currency amounts, numbers and dates per the official CLDR rules (de-CH apostrophe grouping, en-IN lakh, ja-JP zero decimals, Arabic-Indic digits), raw per-locale rules, and a /ver…

paid API data x402
$0.13 · 30d 43 tx
EventEdge Oracle edge.arakelproof.space
q 65

Machine-readable Polymarket and Kalshi market context for AI agents over x402 on Base. Recurring market context, topic context, and richer decision context. Read-only data and decision support; no trade execution.

paid API data x402
$0.05 · 30d 11 tx
Romny Crypto Alerts api2.romny.dpdns.org
q 65

Machine-payable crypto USDT-M perpetual alert data: recent hits, factor library, and rule catalog. 0.10 USDC per request on Base via standard x402. Separate from Romny Polymarket Data (api.romny.dpdns.org).

paid API data x402
from $0.01
CN Evidence api.cnevidence.com
q 65

China supplier verification API and remote MCP. Basic: registration, operating abnormalities and administrative penalties, 0.032 USDC. Full: nine selected modules, 0.093 USDC. Base USDC via x402 v2. First page up to 10 records per list; not…

paid API data x402
from $0.03
PipeForge x402 Infrastructure Inspector x402.pipeforge.tech
q 65

Pay-per-request infrastructure inspection API for AI agents and automated clients. For $0.02 USDC on Algorand MainNet, it returns structured DNS, HTTP/S, TLS, redirect, latency, and security-header data for a public Internet host. No accoun…

paid API data x402
from $0.02
IntelGeist api.intelgeist.ai
q 65

Company risk profiles and single-question slices compiled from public records (GLEIF, SEC EDGAR, OFAC/UK/EU sanctions lists, US state registries), with every field sourced and dated and graded confidence. Paid per call over x402 in USDC on …

paid API data x402
from $0.01
wodan-posture wodan-posture.app.goedvps.com
q 65

Access-posture reports for agent data sourcing. Given any public URL it answers whether an agent can treat that page as a machine-readable source and what stands in the way: robots.txt verdict for the exact path, bot-wall vendor fingerprint…

paid API data x402
from $0.01
beyourspace structured-data APIs for agents api.beyourspace.es
q 65

Pay-per-call catalog of 16 POST endpoints for agents: extract structured JSON from text (job offers, product sheets, changelogs), read a public page as clean Markdown, normalize CSV exports into JSON (requirements, experiment backlogs, onbo…

paid API data x402
$0.15 · 30d 14 tx
Revenue Swarm — EU Tender Intelligence revenue-swarm.com
q 65

Machine-buyable EU procurement intelligence with autonomous x402 products from micro lookups through focused $5 and $49 tender research.

paid API data x402
from $5.00